UBUNTU-CVE-2020-1935

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Source
https://ubuntu.com/security/CVE-2020-1935
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1935.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-1935
Upstream
Downstream
Related
Published
2020-02-24T22:15:00Z
Modified
2025-09-08T16:45:55Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.

References

Affected packages

Ubuntu:16.04:LTS

tomcat8

Package

Name
tomcat8
Purl
pkg:deb/ubuntu/tomcat8@8.0.32-1ubuntu1.13?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
8.0.32-1ubuntu1.13

Affected versions

8.*

8.0.26-1
8.0.28-1
8.0.30-1
8.0.32-1
8.0.32-1ubuntu1
8.0.32-1ubuntu1.1
8.0.32-1ubuntu1.2
8.0.32-1ubuntu1.3
8.0.32-1ubuntu1.4
8.0.32-1ubuntu1.5
8.0.32-1ubuntu1.6
8.0.32-1ubuntu1.7
8.0.32-1ubuntu1.8
8.0.32-1ubuntu1.9
8.0.32-1ubuntu1.10
8.0.32-1ubuntu1.11

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "8.0.32-1ubuntu1.13",
            "binary_name": "libservlet3.1-java"
        },
        {
            "binary_version": "8.0.32-1ubuntu1.13",
            "binary_name": "libtomcat8-java"
        },
        {
            "binary_version": "8.0.32-1ubuntu1.13",
            "binary_name": "tomcat8"
        },
        {
            "binary_version": "8.0.32-1ubuntu1.13",
            "binary_name": "tomcat8-admin"
        },
        {
            "binary_version": "8.0.32-1ubuntu1.13",
            "binary_name": "tomcat8-common"
        },
        {
            "binary_version": "8.0.32-1ubuntu1.13",
            "binary_name": "tomcat8-docs"
        },
        {
            "binary_version": "8.0.32-1ubuntu1.13",
            "binary_name": "tomcat8-examples"
        },
        {
            "binary_version": "8.0.32-1ubuntu1.13",
            "binary_name": "tomcat8-user"
        }
    ]
}

Ubuntu:Pro:14.04:LTS

tomcat7

Package

Name
tomcat7
Purl
pkg:deb/ubuntu/tomcat7@7.0.52-1ubuntu0.16+esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*

7.0.42-1
7.0.47-1
7.0.50-1
7.0.52-1
7.0.52-1ubuntu0.1
7.0.52-1ubuntu0.3
7.0.52-1ubuntu0.6
7.0.52-1ubuntu0.7
7.0.52-1ubuntu0.8
7.0.52-1ubuntu0.9
7.0.52-1ubuntu0.10
7.0.52-1ubuntu0.11
7.0.52-1ubuntu0.13
7.0.52-1ubuntu0.14
7.0.52-1ubuntu0.15
7.0.52-1ubuntu0.16
7.0.52-1ubuntu0.16+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm1",
            "binary_name": "libservlet3.0-java"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm1",
            "binary_name": "libtomcat7-java"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm1",
            "binary_name": "tomcat7"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm1",
            "binary_name": "tomcat7-admin"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm1",
            "binary_name": "tomcat7-common"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm1",
            "binary_name": "tomcat7-docs"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm1",
            "binary_name": "tomcat7-examples"
        },
        {
            "binary_version": "7.0.52-1ubuntu0.16+esm1",
            "binary_name": "tomcat7-user"
        }
    ]
}

Ubuntu:Pro:16.04:LTS

tomcat7

Package

Name
tomcat7
Purl
pkg:deb/ubuntu/tomcat7@7.0.68-1ubuntu0.4+esm3?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*

7.0.64-1
7.0.68-1
7.0.68-1ubuntu0.1
7.0.68-1ubuntu0.3
7.0.68-1ubuntu0.4
7.0.68-1ubuntu0.4+esm1
7.0.68-1ubuntu0.4+esm2
7.0.68-1ubuntu0.4+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm3",
            "binary_name": "libservlet3.0-java"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm3",
            "binary_name": "libtomcat7-java"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm3",
            "binary_name": "tomcat7"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm3",
            "binary_name": "tomcat7-admin"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm3",
            "binary_name": "tomcat7-common"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm3",
            "binary_name": "tomcat7-docs"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm3",
            "binary_name": "tomcat7-examples"
        },
        {
            "binary_version": "7.0.68-1ubuntu0.4+esm3",
            "binary_name": "tomcat7-user"
        }
    ]
}

Ubuntu:Pro:18.04:LTS

tomcat7

Package

Name
tomcat7
Purl
pkg:deb/ubuntu/tomcat7@7.0.78-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*

7.0.78-1
7.0.78-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.0.78-1ubuntu0.1~esm1",
            "binary_name": "libservlet3.0-java"
        }
    ]
}

tomcat8

Package

Name
tomcat8
Purl
pkg:deb/ubuntu/tomcat8@8.5.39-1ubuntu1~18.04.3+esm5?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*

8.5.21-1ubuntu1
8.5.29-1
8.5.30-1
8.5.30-1ubuntu1
8.5.30-1ubuntu1.2
8.5.30-1ubuntu1.3
8.5.30-1ubuntu1.4
8.5.39-1ubuntu1~18.04.1
8.5.39-1ubuntu1~18.04.2
8.5.39-1ubuntu1~18.04.3
8.5.39-1ubuntu1~18.04.3+esm1
8.5.39-1ubuntu1~18.04.3+esm2
8.5.39-1ubuntu1~18.04.3+esm3
8.5.39-1ubuntu1~18.04.3+esm4
8.5.39-1ubuntu1~18.04.3+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5",
            "binary_name": "libtomcat8-embed-java"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5",
            "binary_name": "libtomcat8-java"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5",
            "binary_name": "tomcat8"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5",
            "binary_name": "tomcat8-admin"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5",
            "binary_name": "tomcat8-common"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5",
            "binary_name": "tomcat8-docs"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5",
            "binary_name": "tomcat8-examples"
        },
        {
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5",
            "binary_name": "tomcat8-user"
        }
    ]
}

tomcat9

Package

Name
tomcat9
Purl
pkg:deb/ubuntu/tomcat9@9.0.16-3ubuntu0.18.04.2+esm7?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

9.*

9.0.16-3~18.04.1
9.0.16-3ubuntu0.18.04.1
9.0.16-3ubuntu0.18.04.2
9.0.16-3ubuntu0.18.04.2+esm1
9.0.16-3ubuntu0.18.04.2+esm2
9.0.16-3ubuntu0.18.04.2+esm3
9.0.16-3ubuntu0.18.04.2+esm4
9.0.16-3ubuntu0.18.04.2+esm5
9.0.16-3ubuntu0.18.04.2+esm6
9.0.16-3ubuntu0.18.04.2+esm7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "libtomcat9-embed-java"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "libtomcat9-java"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-admin"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-common"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-docs"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-examples"
        },
        {
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7",
            "binary_name": "tomcat9-user"
        }
    ]
}